Not necessarily Seoul's finest spa, but one of its biggest and certainly the easiest to find, this traditional Korean public bath house is located directly outside of Yongsan Station. The atmosphere is a little hokey, with some faux-classical touches, and it can get mighty crowded on the weekend. Still, for an introduction to the Korean bathhouse experience you could do a lot worse. Pay your entrance, slip out of your clothes in the locker room, and spend a few hours sampling the various hot and cold baths and sauna rooms. If you're feeling adventurous, go in for a full-body scrub, but be forewarned that the masseurs go at it with a vengeance!